Hello Raymond
I've been working on Alsamixer-Qt4 lately and compiled the changes into a new release version 0.4.0.
- au8830 Equalizer
you can find the screenshot of the equalizer ( gnome volume control) and the correct implementation of the equalizer of the vortexcontrol and python version of the equalizer
the asound.state of au8830
Ok, I tried to figure out how this relates to alsamixer-qt4 (since I don't have the sound card).
Please correct me if I'm wrong.
The "EQ Peaks" Simple Mixer Element has more channels than the 9 channels described in the snd_mixer_selem_channel_id_t enum. ( SND_MIXER_SCHN_FRONT_LEFT up to SND_MIXER_SCHN_REAR_CENTER ).
http://www.alsa-project.org/alsa-doc/alsa-lib/group___simple_mixer.html#g9cb...
Alsamixer-Qt4 currently can only show these 9 channels - in the channels mixer dialog - which is not sufficient.
I did not find a function like snd_mixer_selem_playback_channels which would return the number of channels. So to find out how many channels there actually are I would have to do something like this
int num_playback = 0; for ( int ii=0; ii < 1024; ++ii ) { if ( snd_mixer_selem_has_playback_channel ( elem, ii ) ) { num_playback += 1; } else { break; } }
- CMI8788 's 8 Channels Master Volume Control
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4204
Card hw:0 'CMI8788'/'C-Media Oxygen HD Audio (rev 2) at 0xec00, irq 17'
Mixer name : 'CMI8788' Components : 'AK4396 AK5385 CMI8788' Controls : 23 Simple ctrls : 12 Simple mixer control 'Master',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right - Rear Left - Rear Right
- Front Center - Woofer - Side Left - Side Right Limits: Playback 0 - 255 Mono: Front Left: Playback 112 [44%] [-7.14dB] [on] Front Right: Playback 112 [44%] [-7.14dB] [on] Rear Left: Playback 178 [70%] [-3.12dB] [on] Rear Right: Playback 178 [70%] [-3.12dB] [on] Front Center: Playback 178 [70%] [-3.12dB] [on] Woofer: Playback 178 [70%] [-3.12dB] [on] Side Left: Playback 178 [70%] [-3.12dB] [on] Side Right: Playback 178 [70%] [-3.12dB] [on]
state.CMI8788 { control.1 { comment.access 'read write' comment.type INTEGER comment.count 8 comment.range '0 - 255' comment.dbmin -9999999 comment.dbmax 0 iface MIXER name 'Master Playback Volume' value.0 112 value.1 112 value.2 178 value.3 178 value.4 178 value.5 178 value.6 178 value.7 178 }
Basically the same issue?
Best, Sebastian